USB flash drive



FIG. 1 is a perspective view of a USB flash drive showing our new design;

FIG. 2 is a front view thereof, and a rear view is the same as the front view;

FIG. 3 is a left side view thereof, and a right side view is the same as the left side view;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIGS. 6-8 are in different using modes thereof.

The broken line portions of the USB flash drive in FIGS. 1-8 form no part of the claimed design. 

CLAIM The ornamental design for a USB flash drive, as shown and described. 